Skip to content

HOUR

Date & time

The hour of a time value (0–23).

Syntax

HOUR(serial_number)

Full notes for HOUR are still being written. Use the AI explainer below for the arguments, a worked example and common mistakes.

More Date & time functions

← All 510 functions

Syntax follows Microsoft’s documentation. Examples are written to be pasted into a cell and checked. Argument separators may be ; in your locale. The AI explainer runs on a free community model — verify anything important.